Company lists · Data refreshed September 2026
Top 25 Critical facilities contractors based in Spain
RevenueBase identified 193 critical facilities contractors headquartered in Spain as of September 2026 and tracks 12,027 professional contacts across them, including 669 with verified work emails. Madrid is the largest hub.
This list covers critical facilities contractors headquartered in Spain, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest critical facilities contractors based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,221 contacts → | ||||
Indirect evidence “At Sener we want to transform the world by challenging the boundaries of technology.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,554 contacts → | ||||
Indirect evidence “DRAGADOS, S.A.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 475 contacts → | ||||
Indirect evidence “En Lantania hacemos realidad grandes infraestructuras de transporte, agua y energía con el entusiasmo de una empresa joven y la solidez que nos aporta la experiencia.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 418 contacts → | ||||
Partial evidence “GTD is a high-tech company, committed to the design, integration and operation of complex, mission-critical applications and systems throughout the world.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 399 contacts → | ||||
Indirect evidence “Copcisa is a construction company.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 239 contacts → | ||||
Indirect evidence “Business group of engineering, technical services and integral installations.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 232 contacts → | ||||
Indirect evidence “Elevate your expectations with ACISA, a proud member of the prestigious Aldesa Group, Spain's construction titan.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 209 contacts → | ||||
Indirect evidence “ESPINA is a constantly growing company that has been expanding its areas of activity and services in Spain since 1989 and in Uruguay and the Ivory Coast since 1995.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 200 contacts → | ||||
Indirect evidence “ITERCON es la empresa de diseño y construcción referente en el sector industrial especializada en el desarrollo de proyectos integrales.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 154 contacts → | ||||
Indirect evidence “Construcía S.L, company specializing in infrastructure development for businesses Our strategy as a company is based on an integrated service offering which combines solutions for…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 150 contacts → | ||||
Indirect evidence “Somos una marca global de Ingeniería en integración de soluciones de Telecomunicaciones y Sistemas IT con más de 35 años de experiencia.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 106 contacts → | ||||
Indirect evidence “Empresa de infraestructura” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 104 contacts → | ||||
Partial evidence “With over 20 years of experience, we design and deliver sustainable, resilient and energy-efficient facilities that meet the highest international standards for reliability…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 99 contacts → | ||||
Indirect evidence “Somos una empresa de referencia con más de 80 años de experiencia en cimentaciones y tecnologías de suelo.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 97 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 97 contacts → | ||||
Indirect evidence “PQC is an engineering and architecture firm specialized in Data Centers.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 96 contacts → | ||||
Indirect evidence “Nuestra empresa LIC, nace en Alberic (Valencia) en el año Su origen es la empresa Soluciones Estructurales SL, con una larga trayectoria en la ejecución de grandes estructuras de…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 92 contacts → | ||||
Indirect evidence “Emurtel es una compañía líder de ingeniería y consultoría multidisciplinar orientada a la gestión integral de proyectos, ofreciendo soluciones de valor añadido en el diseño…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 88 contacts → | ||||
Indirect evidence “Quark es una compañía líder en Arquitectura, Ingeniería y Project Management para Data Centers, que asesora a las empresas más avanzadas tecnológicamente.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 87 contacts → | ||||
Indirect evidence “Rogasa fue fundada en 1987 por la familia Romero Gamero.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 77 contacts → | ||||
Partial evidence “PROJECTS & FACILITIES MANAGEMENT, empresa especializada en gestión de proyectos complejos y grandes operaciones de infraestructuras y edificación, y en servicios de facility…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 68 contacts → | ||||
Indirect evidence “Referentes en Construcción de alto valor técnico y Obra Civil | Expertos en Infraestructuras, Edificación, Energía, Obra Hidráulica y Servicios Como parte integral de GRUPO INEXO…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 62 contacts → | ||||
Indirect evidence “Construcía Instalaciones, expertos en instalaciones de Ingeniería desde el año 2002, gestionamos proyectos integrales de diseño e implementación de todas las infraestructuras…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 53 contacts → | ||||
Indirect evidence “A Cots i Claret volem acompanyar-te en la construcció del teu projecte.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 41 contacts → | ||||
Indirect evidence “CENTUNION is an engineering and construction company dedicated to the development of infrastructure projects.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: critical facilities contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names critical facilities contractors.
- Partial evidence
- Its own public description names part of critical facilities contractors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name critical facilities contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 193 critical facilities contractors based in Spain
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Critical facilities contractors based in Spain at a glance
As of Sep 16, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 193 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among critical facilities contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Spain whose own description of what they do matches “critical facilities contractors”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names critical facilities contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among critical facilities contractors, and records with no verified work email. Companies headquartered outside Spain are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 669 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 16, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Critical facilities contractors by metro
- Critical facilities contractors in Madrid42
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names critical facilities contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many critical facilities contractors are there based in Spain?
RevenueBase identified 193 critical facilities contractors headquartered in Spain as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
SENER, headquartered in Getxo, tops this list with the largest team on record.
Which city has the most critical facilities contractors?
Madrid leads with 42 headquartered companies, followed by Barcelona (19) and Sevilla (7).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 669 verified decision-maker contacts tracked across these 193 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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